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Wharton’s jelly-derived mesenchymal cells as a new source for the generation of microtissues for tissue engineering applications

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Abstract

Microtissues (MT) are currently considered as a promising alternative for the fabrication of natural, 3D biomimetic functional units for the construction of bio-artificial substitutes by tissue engineering (TE). The aim of this study was to evaluate the possibility of generating mesenchymal cell-based MT using human umbilical cord Wharton’s jelly stromal cells (WJSC-MT). MT were generated using agarose microchips and evaluated ex vivo during 28 days. Fibroblasts MT (FIB-MT) were used as control. Morphometry, cell viability and metabolism, MT-formation process and ECM synthesis were assessed by phase-contrast microscopy, functional biochemical assays, and histological analyses. Morphometry revealed a time-course compaction process in both MT, but WJSC-MT resulted to be larger than FIB-MT in all days analyzed. Cell viability and functionality evaluation demonstrated that both MT were composed by viable and metabolically active cells, especially the WJSC during 4–21 days ex vivo. Histology showed that WJSC acquired a peripheral pattern and synthesized an extracellular matrix-rich core over the time, what differed from the homogeneous pattern observed in FIB-MT. This study demonstrates the possibility of using WJSC to create MT containing viable and functional cells and abundant extracellular matrix. We hypothesize that WJSC-MT could be a promising alternative in TE protocols. However, future cell differentiation and in vivo studies are still needed to demonstrate the potential usefulness of WJSC-MT in regenerative medicine.

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Acknowledgements

This study was supported by the Spanish plan Nacional de investigación Científica, Desarrollo e Innovación Tecnológica, Ministry of Economy and Competitiveness (Instituto de Salud Carlos III), Grant Nos. FIS PI17/393 and FIS PI17/391, co-financed by Fondo Europeo de Desarrollo Regional (ERDF-FEDER, EU), UE and by the Regional Ministry of Health, Junta de Andalucía, Spain, Grant Nos. SAS PI-400-2016 and CS PI-0257-2017. Authors are grateful to Dr. Ariane Ruyffelaert for the editing language service. Daniel Durand was supported by “Consejo Nacional de Ciencia y Tecnología” (CONACYT), scholarship program from Mexican government 580680/694261. Finally, this study forms part of the Doctoral Thesis of Daniel Durand Herrera.

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Correspondence to A. Campos or V. Carriel.

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Durand-Herrera, D., Campos, F., Jaimes-Parra, B.D. et al. Wharton’s jelly-derived mesenchymal cells as a new source for the generation of microtissues for tissue engineering applications. Histochem Cell Biol 150, 379–393 (2018). https://doi.org/10.1007/s00418-018-1685-6

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  • DOI: https://doi.org/10.1007/s00418-018-1685-6

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